Display device



` C. W. WADSWORTH.

D'ISPLAY DEVlCE.

l APPLICATION FILED NOV. l?, 1920.

Panted Sept. 13, 192,1.

UNITED STATES' `tlifAltLltS W. WADSWORTH,.OF HERRICK, NEW YORK. ASSIGNOR T PATENT OFFICE.

FRED MOORE,

OF NEW YORK, N. Y.

DISPLAY DEVICE.

specification Letters Patent. .Patented Sept. 13, 1921.

Application led November I7-, 1920. Serial No. 424,740.

To all whom it may concern Be it know that I, CHARLES 1V. 7answoirrn. a citizen of the United States. residing` at Merrick. in the county of Nassau and rw'tate'of New York. have invented certain new and useful Improvements in Display Devices(` fully described and represented in the following specitication and the acc0mpartying drawing. forming a part of the same.

This invention relates to display devices, and has for an 'object to provide an attachment tor flexible posters or like articles which serves to hold the poster flat for displa): purposes while `permitting the poster to be rolled into a small package for ease in transportation.

According to my invention. a poster or similar article is mounted or printed on Flexible material such as cloth or paper. Two stitln or rigid members are attached to oppo-` site edges of the poster, and to one of these edge members is permanently pivoted a folding a thrust piece. The thrust piece is adapted to lie against the edge member to which it pivoted. when it is folded. and

` to engagethe` other edge member and exert titl a thrust l'aetween the edge members when it extended.

The invention will be fully' understood from a detailed description of the embodiment of it: illustrated in the accompanying drawing-s. in which:

Figure 1 is an edge elevation of the de vice with the poster stretched flat for dis plalv:

Fig. Q a rear elevation of the device with the poster stretched flat. indicating in dotted lines a position which the thrust member assumes as it is being folded: and

Fig. P5 is a top view showing the thrust member folded against the edge member to which it is pirot'ed preparatory to rolling up the poster tor transportation,

The poster l() comprises a sheet of flexible' a socket 19 in the inner edge of the edge memeber by means of a rivet 1,6 which extends perpendicularly to the edge member 11. The inner ends of the two thrust members '14, 15 are overlapped and pivotally attached together by' a rivet 1T which is end ofl the thrust member l5 is provided with means for detachably engaging the edge member 12. In the form shown such means consists ofa pin 18 projecting from the end of the .thrust member and adapted to enter of the edge member 1Q at .its middle point.

T he combined length ot the thrust members 14, is, of course, necessarilvY substantially equal to the length of the poster l0. The lengths of the two thrust members 1l nd l5 are so proportioned that neither of tiem projects objectionally beyond the sides of the poster when in the folded position shown in Fig. 3. wWhen possible. the length of the thrust member 11 is not greater than one-half the width of the poster, and the length ot' the thrustl member 15 is made not greater than the width of the poster so that neither of the thrust members projects belvond the sides of the poster when the thrust piece is folded. It. however, the poster is more than one and a half times as long as it is wide. it is not possible, to arrange thel thrust member 11. 15 so that they t'old within the width of the poster. In this/case the length of the thrust member 11 is made onethird thelength of the poster and the other thrust member is made two-thirds of this length so that the projection ofthe thrust piece when folded is as small as possible.

The use of the device described is as fol lows Vhen the poster is to be displayed. it is unrolled and the thrust members 14 and 15` are moved about their pivots until the;7 extend nearljvv 4straight across the back of the poster. The outer end of the thrust member 15' is then inserted in the socket 19 in the edge member 12 and the pivot 17 of the thrust piece is moved sidcxvis'e until the members are extended in a straight line as shown in Figs. 1 and Q. This movement results in causing an outwardt-hrust on the edge members 11 and 12. drawing the poster 10 flat. The friction between the overlanping ends of the thrust members 14 and 15 parallel to the rivet 16. The outer tends to prevent relative angular movement ot these members and thus to prevent the accidental displacement of the pivot point. 1T when the poster is extended as described.

It should be noted that owing to the fact that both the pivots 16 and 17 are perpen- -dicular to the edge piece 1l and consequently to the surface ot the poster l0 when extended, the movement of the thrust piece in folding is in a plane parallel to the poster so that the inner ends ot' the thrust pieces cannot move toward the poster and tear or injure it as the attachment is being folded.

lhen it is desired to transport the poster, the pivot 1T is moved sidewise disengaging thel hin LQ trom the socket 1t). The thrust members l-t and lf are tiren swung about their pivots until they lie fiat against the back ot the edge member l1. as shown in `Fig. Il. The poster l() is then rolled closely about the edge member ll and the folded thrust piece which have been eompactly folded together, so that the-poster and the attachment toi-m a small package which may easily be transported.

Various changes may be made in the embodiment shown without departing from my invention. Thus other means than the frietion between the overlapping ends ot the thrust members may be used to retain the thrust piece. in extended position. /Other forms otI connection between the thrust member l5 and the edge piece l2 may be used. l shall not. however, attempt to set forth all such changes.

'hat claimed is:

l. The combination with a iexible poster, ot edge members attached to opposite edges ot the poster, and a toldable. thrust piece. (comprising a pluralityv oi thrust members pivotally attached together. said thrust piece being permanently pivoted at one ot its ends to one ot' the edge members and having its other end adapted to engage the other o't` said edge members so as to exert an outward thrust on said edge members when extended 'Y and to lie. against the. edge member to which it is pivotcd when folded.

Q. The combination with a tlcxible poster.

yot edge ineiiibci's attached to opposite edges of said poster, and a thrust piece comprising a member having one of its ends attached to one ot' said edge members by a pivot which permits it to swing from a position in line witli said edge member to a position at right angles to said edge. member` and a member having one of its ends attached to said first mentioned thrust member by means ot' a pivot which permits it to swing through an angle ot 180C. relatively1 to said first nien- .tioned thrust member and having its other end adapted det-achably to engage the other ot' said edge members, said two pivots being parallel and perpendicular to the edge. mein ber to which the thrust piece is pivot-ed.

3. The. Combination with a iicxiblc poster. of edge members attached to opposite edges of said poster, and a thrust piece comprising a member pivoted at one ot' its ends to one. of Said edge members and a member piroicd at one of `its ends to said inst-mentioned thrust member and having its other end adapted detachably to engage said other edge member. said thrust piece being adapted to exert an outward thrust on said edge members when its thrust members are extended in a straio'ht lint` and to lic against the one ot said edge members to which it is pivoted when its thrust members aie folded together. -.t. The combination with a flexible poster. ot edge pieces attached to opposite, edges ot' said poster. and a thrust piece compris ing a thrust member pivoted :it its outer end to one of said edge members and not matcri ally greater in length than the distance from the pivot point to one end oi said edge member. and a thrust member pivotcd at itsl inner end to the inner end ol said li'rstancntioncd thrust. member and not materially greater in length than said edge members. so that when said thrust piece is folded upon said edge member it does not project materially bevond the ends thereof. said thrust piece having its free end adapted to engage said other edge member and being adapted to exert an outward thrust upon said edge menilafrsl when. said thrust members arc extended in a straight line.

5. The combination with a tlexible poster. ot' edge members attached to opposite ends ot said poster` and a thrust piece comprising a thrust member having its outer end pivotally attached to one ot said edge pier-cs at.

its middle point and not materially greater in length than one-haltI oi' the width of said poster and a thrust, member having its inner end pivoted to the inner end o said lirsi mentioned thrust member and its outer end adapted to engage said other edge nicmbcr and not materially gratcr in length than the width ot said poster. so that when said thrust piece is t'oldcd it does not extend inaterially beyond the sides ot the poster. thc combined length of said'thrust members bciiig substantially equal to the length ot' the poster so that when they are extended in a straight line they exert an outward thrust upon said edge members to draw the poster tlut. A

ln testimony whereoll l hart hereunto set my hand in the presence ot two subscribing 

